Deleting Parts linked with a Part Sync Request

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I have the following questions.

1.Create an Item in Fusion

2.Register the Item as a Part in CPQ → Administration Platform Parts → Parts → Sales Catalogue Integration → Part Sync Request.

3.Item 1 has become inactive in Fusion

Here's a question.

4.If a periodically executed Part Sync Request imports an item that became inactive in step 3, what happens to the parts registered in step 2?

I am asking this question because Parts registered with a Part Sync Request cannot be manually deleted.

Thank you.